Pickup truck cab addition



FIG. 1 is a side view of a pickup truck cab addition, showing my new design, shown attached to a pickup truck;

FIG. 2 is an enlarged front perspective view of the pickup truck cab addition;

FIG. 3 is an enlarged front view thereof;

FIG. 4 is an enlarged side view thereof, it being understood that the opposite side is a mirror image thereof;

FIG. 5 is an enlarged top view thereof;

FIG. 6 is an enlarged rear view thereof; and,

FIG. 7 is an enlarged bottom view thereof.

The broken line showing of environment is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a pickup truck cab addition, as shown and described. 